Ammonium removal from aqueous solution by ion-exchange using packed bed natural zeolite

Demi̇r, Ahmet; Günay, Ahmet; Debik, Eyüp

doi:10.4314/wsa.v28i3.4903

Cited by 126 publications

(90 citation statements)

References 7 publications

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“…Demir and coworkers (Demir et al 2002) studied the capacity of Bigadiç clinoptilolite for removing ions from synthetic aqueous solutions under varying conditions. The actual ion-exchange capacity of the conditioned fi ne and coarse clinoptilolite was found to be 0.57 and 0.38 mg/g zeolite, respectively.…”

Section: Introductionmentioning

confidence: 99%

Response surface methodology (RSM) and its application for optimization of ammonium ions removal from aqueous solutions by pumice as a natural and low cost adsorbent

Moradi¹,

Fazlzadeh²,

Pirsaheb³

et al. 2016

Archives of Environmental Protection

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This research was conducted to study the adsorption of ammonium ions onto pumice as a natural and low-cost adsorbent. The physico-chemical properties of the pumice granular were characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Modeling and optimization of a NH 4 + sorption process was accomplished by varying four independent parameters (pumice dosage, initial ammonium ion concentration, mixing rate and contact time) using a central composite design (CCD) under response surface methodology (RSM). The optimum conditions for maximum removal of NH 4 + (70.3%) were found to be 100 g, 20 mg/l, 300 rpm and 180 min, for pumice dosage, initial NH 4 + ion concentration, mixing rate and contact time. It was found that the NH 4 + adsorption on the pumice granular was dependent on adsorbent dosage and initial ammonium ion concentration. NH 4 + was increased due to decrease the initial concentration of NH 4 and increase the contact time, mixing rate and amount of adsorbent.

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Section: Introductionmentioning

confidence: 99%

Response surface methodology (RSM) and its application for optimization of ammonium ions removal from aqueous solutions by pumice as a natural and low cost adsorbent

Moradi¹,

Fazlzadeh²,

Pirsaheb³

et al. 2016

Archives of Environmental Protection

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“…By choosing suitable filter media, high purification efficiency of constructed wetlands can be achieved. Laboratory column and batch experiments have been performed with zeolites to assess their sorption of ammonium nitrogen (Papadopoulos et al, 1996;Demir et al, 2002). Moreover, attention has been paid to the potential use of industrial byproducts in constructed wetlands and other wastewater-treatment systems.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of microbial community structure in different filter media of constructed wetland

Zhou

Tao

et al. 2010

Journal of Environmental Sciences

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“…The tests results on conditioned zeolite showed that the cation exchange capacity was 10.06 (in breakthrough point) and 18.38 mg NH 4 + g -1 zeolite as total capacity (6,8). The results indicated that high level of regeneration (95-98%) might be achieved with solution of ClNa (table 1).…”

Section: Characterization Of Clinoptilolitementioning

confidence: 78%

“…Clinoptilolite is a natural zeolite that has been known for their ability to remove ammonium from polluted waters. The capacity of zeolite and chemical regeneration for ammonium removal was investigated in several studies [3][4][5][6][7][8]. Usually, the service cycle is a down flow packed bed column followed by chemical regeneration (usually by NaCl).The major drawback of this process is the high cost of the chemical regeneration stage and disposal of the concentrated ammonium-sodium brain produced [9].…”

Section: Introductionmentioning

confidence: 99%

Use of ion exchange for removal of Ammonium: A biological regeneration of zeolite

2013

Issue 2

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Nitrogen in the Ammonia form can have deleterious effects in water resources. Ion Exchange by zeolite and biological Nitrification processes are two proposed methods for removing Nitrogen compounds from wastewater and effluents. The main objective of this research was to investigate the efficiency of nitrifying bacteria for regenerating Clinoptilolite zeolite. In this research, the Semnan Clinoptilolite zeolite was supplied in mesh 30. Then the capacity of zeolite in ammonium removal was determined in column system. To cultivate of nitrifying bacteria a sludge sample was taken from a domestic wastewater treatment plant and added to a 15 l aeration tank. Ammonium and other nutrients were added in the reactor daily over a month period and the effect of nitrate anion and MLVSS on nitrification process have been determined. After saturation of zeolite with ammonium, biological regeneration was done by contact of zeolite and nitrifying bacteria in column system. In this stage slurry of nitrifying bacteria is pumped up flow through the zeolite column and recycled to the aeration tank. The effluent containing the displaced ammonium is oxidized to nitrate by the nitrifying bacteria. Then the nitrified brine is clarified in a sedimentation tank and stored for reuses.The results showed that the cation exchange capacity was 10.06 (in breakthrough point) and 18.38 mg NH 4 + g -1 zeolite as total capacity. The results indicated that nitrification accelerated by increasing in MLVSS concentration and concentration of nitrate remains in solution. The results obtained from bioregeneration tests of zeolite showed that the efficiency was 87.7 to 99.8% in period of 3.5 to 5.5 hours. Based on the results, since regeneration is achieved in high concentration of nitrate, the use of nitrifying sludge in several cycles is possible and the use of system can be appreciated to an alternative economical method for removing NH 4 + from effluent.

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Ammonium removal from aqueous solution by ion-exchange using packed bed natural zeolite

Cited by 126 publications

References 7 publications

Response surface methodology (RSM) and its application for optimization of ammonium ions removal from aqueous solutions by pumice as a natural and low cost adsorbent

Response surface methodology (RSM) and its application for optimization of ammonium ions removal from aqueous solutions by pumice as a natural and low cost adsorbent

Comparative study of microbial community structure in different filter media of constructed wetland

Use of ion exchange for removal of Ammonium: A biological regeneration of zeolite

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